Your Name 8 months ago
parent
commit
fa3503e1d6
2 changed files with 162 additions and 11 deletions
  1. +32
    -11
      Air_Quality_Sensor_PPD42/code/text_entry_lcd_test_mega2ino/text_entry_lcd_test_mega2ino.ino
  2. +130
    -0
      Air_Quality_Sensor_PPD42/code/text_entry_lcd_test_mega3/text_entry_lcd_test_mega3.ino

+ 32
- 11
Air_Quality_Sensor_PPD42/code/text_entry_lcd_test_mega2ino/text_entry_lcd_test_mega2ino.ino View File

@ -16,14 +16,15 @@ MCUFRIEND_kbv tft;
#include <math.h>
int DustSensePin = 13;
int DustSensePin = 31;
//globals for ppd42 dust sensor
//let's start with 100 readings. (copy and paste)
unsigned int airreading[100] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
//unsigned int airreading[100] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
unsigned long starttime = 0;
unsigned long sampletime_ms = 60000;//sample 60s == 60000 ;
unsigned long sampletime_ms = 10000;//sample 60s == 60000 ;
unsigned long lowpulseoccupancy = 0;
unsigned long duration = 0;
float ratio = 0;
float concentration = 0;
unsigned int x = 0;
@ -38,6 +39,9 @@ int brightnessread = 0;
int cat = 0;
int resultsread1 = 0;
int screenreadyforprint = 0;
double count = 0;
void setup(void)
{
Serial.begin(9600);
@ -59,32 +63,49 @@ void loop(void)
if(screenreadyforprint == 0){
tft.fillScreen(BLACK);
tft.WriteCmdData(0x51, 0x0000);
tft.setTextColor(0XFFFF);
tft.setTextSize(2);
tft.setCursor(0, 36);
tft.println("running sensor now");
tft.println("Starting Sensor");
screenreadyforprint = 1;
}
duration = pulseIn(DustSensePin, LOW, 500000);
airreading[x] = pulseIn(DustSensePin, LOW, 500000);
tft.println("Results are in:");
lowpulseoccupancy = lowpulseoccupancy + duration;
//tft.println(airreading)
if ((millis()-starttime) > sampletime_ms)//if the sample time == 30s
{
if ((millis()-starttime) > sampletime_ms)//if the sample time == 30s
{
tft.fillScreen(BLACK);
tft.WriteCmdData(0x51, 0x0000);
tft.setTextColor(0XFFFF);
tft.setTextSize(2);
tft.setCursor(0, 36);
ratio = lowpulseoccupancy/(sampletime_ms*10.0); // Integer percentage 0=>100
concentration = 1.1*powf(ratio,3)-3.8*powf(ratio,2)+520*ratio+0.62; // using spec sheet curve
tft.print("Count: ");
tft.println(count);
tft.println(lowpulseoccupancy);
//tft.print(",");
tft.println(ratio);
//Serial.print(",");
//tft.print(",");
tft.print("Concentration is: ");
tft.println(concentration);
lowpulseoccupancy = 0;
starttime = millis();
//tft.println("Results printed.");
count++;
}
}
void showmsgXY(int x, int y, int sz, const GFXfont *f, const char *msg)

+ 130
- 0
Air_Quality_Sensor_PPD42/code/text_entry_lcd_test_mega3/text_entry_lcd_test_mega3.ino View File

@ -0,0 +1,130 @@
#include <Adafruit_GFX.h> // Core graphics library
#include <MCUFRIEND_kbv.h> // Hardware-specific library
MCUFRIEND_kbv tft;
#include <Fonts/FreeSans9pt7b.h>
#include <Fonts/FreeSans12pt7b.h>
#include <Fonts/FreeSerif12pt7b.h>
#include <FreeDefaultFonts.h>
#define BLACK 0x0000
#define RED 0xF800
#define GREEN 0x07E0
#define WHITE 0xFFFF
#define GREY 0x8410
#include <math.h>
int DustSensePin = 31;
//globals for ppd42 dust sensor
//unsigned int airreading[100] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
unsigned long starttime = 0;
unsigned long sampletime_ms = 10000;//sample 60s == 60000 ;
unsigned long lowpulseoccupancy = 0;
unsigned long duration = 0;
float ratio = 0;
float concentration = 0;
unsigned int x = 0;
unsigned int toplimit = 0;
unsigned long sum = 0; //highest number possible - 32 bit unsigned, so 4 billion
unsigned int average = 0;
//end ppd42
int brightnessread = 0;
int cat = 0;
int resultsread1 = 0;
int screenreadyforprint = 0;
double count = 0;
void setup(void)
{
Serial.begin(9600);
uint16_t ID = tft.readID();
if (ID == 0xD3) ID = 0x9481;
tft.begin(ID);
tft.setRotation(1);
tft.WriteCmdData(0x51, 0x00);
//resultsread1 = tft.readReg(0x52);
//writeData(0x51);
pinMode(DustSensePin,INPUT);
starttime = millis();//get the current time;
}
void loop(void)
{
if(screenreadyforprint == 0){
tft.fillScreen(BLACK);
tft.WriteCmdData(0x51, 0x0000);
tft.setTextColor(0XFFFF);
tft.setTextSize(2);
tft.setCursor(0, 36);
tft.println("Starting Sensor");
screenreadyforprint = 1;
}
duration = pulseIn(DustSensePin, LOW, 500000);
lowpulseoccupancy = lowpulseoccupancy + duration;
//tft.println(airreading)
if ((millis()-starttime) > sampletime_ms)//if the sample time == 30s
{
tft.fillScreen(BLACK);
tft.WriteCmdData(0x51, 0x0000);
tft.setTextColor(0XFFFF);
tft.setTextSize(2);
tft.setCursor(0, 36);
ratio = lowpulseoccupancy/(sampletime_ms*10.0); // Integer percentage 0=>100
concentration = 1.1*powf(ratio,3)-3.8*powf(ratio,2)+520*ratio+0.62; // using spec sheet curve
tft.print("Count: ");
tft.println(count);
tft.println(lowpulseoccupancy);
//tft.print(",");
tft.println(ratio);
//tft.print(",");
tft.print("Concentration is: ");
tft.println(concentration);
lowpulseoccupancy = 0;
starttime = millis();
//tft.println("Results printed.");
count++;
}
}
void showmsgXY(int x, int y, int sz, const GFXfont *f, const char *msg)
{
int16_t x1, y1;
uint16_t wid, ht;
tft.drawFastHLine(0, y, tft.width(), WHITE);
tft.setFont(f);
tft.setCursor(x, y);
tft.setTextColor(GREEN);
tft.setTextSize(sz);
tft.print(msg);
delay(1000);
}
uint32_t readReg32(uint16_t reg)
{
uint16_t h = tft.readReg(reg, 0);
uint16_t l = tft.readReg(reg, 1);
return ((uint32_t) h << 16) | (l);
}

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